Imagine a GPS-enabled device that would allow you to track the movements and pinpoint the location of any family member in real time. If you’re saying, “Wow! Where do I sign up?” you must be a parent, and the uLocate FamilyFinder could be your ticket to peace of mind when the kids are out on the road. The phone-based tracking service, now available through Nextel, allows users to set up “geofences” around a friend’s house, a mall, or a school. When your phone-toting kid enters or exits one of those areas, you get an e-mail or an SMS alert. It’s free, but a monthly service contract is required, and you must purchase a compatible phone.